before i get into details please know i was a sprint/nextel rep. What you have is a Casual data usage charge which is charged by 3 cents per kilobtyes. It does max out at 75 for one phone per billing cycle on a usual basis. Im guesing you got ethier the ic502, ic602, or ic902, which this issue is a common problem with these phones. It sounds like you ethier waited too long to add the Powersource Data Pack or they forgot to add it on time. A previous rep probably notice this and added to your account without letting you know it wasnt never added in the first place. And got a service solution off of it(which means they get points to their qouta) Two things can happen here for you. Odds are you might have a adjustment block on your account if not you will be getting one soon since you keep calling in getting adjustments. When you call in ask for the history on when that Powersource datapack feature was added. If the previous rep does not adjust your account accordingly ask to get transfered to account services. These are the people who eat and sleep by trying to keep you as a customer. Let them know you are not happy and that you are paying for the powersource datapack but u r still getting charged for casual data usage charge and you are gonna cancel if this doesnt get fixed..problem solved.